Home / 13,443.06-18,551.36-7,474.37

Finding the Fourth Proportional to 13,443.06, 18,551.36 and 7,474.37

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Solution

The fourth proportional to 13,443.06, 18,551.36 and 7,474.37 is: 10,314.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,443.06 : 18,551.36 = 7,474.37 : x
  2. Step 2: Convert to fraction form
    13,443.06/18,551.36 = 7,474.37/x
  3. Step 3: Cross multiply
    13,443.06x = 18,551.36 × 7,474.37
  4. Step 4: Simplify right side
    13,443.06x = 138,659,737.65
  5. Step 5: Solve for x
    x = 138,659,737.65/13,443.06
  6. Step 6: Final answer
    x = 10,314.60

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.